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Comment
. 2013 Aug 9;341(6146):613.
doi: 10.1126/science.1238025.

Technical comment on "The placental mammal ancestor and the post-K-Pg radiation of placentals"

Mark S Springer  1 , Robert W Meredith, Emma C Teeling, William J Murphy
Affiliations
Comment

Technical comment on "The placental mammal ancestor and the post-K-Pg radiation of placentals"

Mark S Springer et al. Science. .

Abstract

O'Leary et al. (Research Article, 8 February 2013, p. 662) examined mammalian relationships and divergence times and concluded that a single placental ancestor crossed the Cretaceous-Paleogene (K-Pg) boundary. This conclusion relies on phylogenetic analyses that fail to discriminate between homology and homoplasy and further implies virus-like rates of nucleotide substitution in early Paleocene placentals.

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  • The placental mammal ancestor and the post-K-Pg radiation of placentals.
    O'Leary MA, Bloch JI, Flynn JJ, Gaudin TJ, Giallombardo A, Giannini NP, Goldberg SL, Kraatz BP, Luo ZX, Meng J, Ni X, Novacek MJ, Perini FA, Randall ZS, Rougier GW, Sargis EJ, Silcox MT, Simmons NB, Spaulding M, Velazco PM, Weksler M, Wible JR, Cirranello AL. O'Leary MA, et al. Science. 2013 Feb 8;339(6120):662-7. doi: 10.1126/science.1229237. Science. 2013. PMID: 23393258

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